Place pie crust in pie pan and crimp edges.
Preheat oven to 350.
Heat corn syrup and sugar over medium heat stirring well until blended and warm.
Beat eggs in a large bowl.
Slowly add sugar mixture to eggs while beating constantly.
Add butter and vanilla. Beat until blended.
Stir in pecans.
Pour mixture into pie crust.
Bake for 50 minutes or until crust is browned.
Allow to cool.